Vulnerability · Published Sep 18, 2026 · Assigned by ibm
CVE-2026-11716IBM MQ for HPE NonStop is vulnerable to a denial of service attack
High 7.5
In plain English
A high-severity heap buffer overflow in MQ for HPE NonStop from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 39% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 60.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code during queue manager startup due to improper validation of cluster migration data.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | MQ for HPE NonStop | 8.1.0 – through 8.1.0.40 |
Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://www.ibm.com/support/pages/node/7287705 vendor-advisory, patch